Aku sedang menghadapi masalah. Saya punya data 2 dimensi. Data memiliki struktur bersarang yang berisi tautan.
const data = [
// First Div Panel
[
{
id: 1,
url: "/services",
title: "Services"
},
{
id: 2,
title: "Products",
children: [
{
id: 3,
url: "/themes-templates",
title: "Themes & Templates"
},
{
id: 4,
url: "/open-source",
title: "Open Source"
},
{
id: 5,
url: "/solutions",
title: "Solutions"
}
]
},
{
id: 6,
url: "/work",
title: "Work",
children: [
{
id: 7,
url: "/methodology",
title: "Methodology",
children: [
{
id: 8,
url: "/agile",
title: "Agile",
children: [
{
id: 9,
url: "/scrum",
title: "Scrum"
}
]
}
]
}
]
},
{
id: 10,
url: "/contact-us",
title: "Contact Us"
}
],
// Second Div Panel which contains children of second list item
[
{
id: 3,
url: "/themes-templates",
title: "Themes & Templates"
},
{
id: 4,
url: "/open-source",
title: "Open Source"
},
{
id: 5,
url: "/solutions",
title: "Solutions"
}
],
// Third Div Panel which contains children of third list item
[
{
id: 7,
url: "/methodology",
title: "Methodology",
children: [
{
id: 8,
url: "/agile",
title: "Agile",
children: [
{
id: 9,
url: "/scrum",
title: "Scrum"
}
]
}
]
}
],
// Fourth Div Panel contains the children of the 3rd sub list item
[
{
id: 8,
url: "/agile",
title: "Agile",
children: [
{
id: 9,
url: "/scrum",
title: "Scrum"
}
]
}
],
// Fourth Div Panel contains the children of the 3rd sub sub list item
[
{
id: 9,
url: "/scrum",
title: "Scrum"
}
]
];
Tugas saya adalah memanfaatkan data 2 dimensi itu dan membuat menu seluler react
yang memiliki struktur seperti panel dorong.
Meski begitu, saya coba buat seperti ini. Apa yang saya lakukan adalah saya memperlakukan setiap sub-array sebagai panel terpisah div
. Pertama, item sub-array akan dipertimbangkan pada panel root yang secara default terlihat. Jika suatu item memiliki children
properti maka itu berarti next
tombol dinamis dihasilkan pada item daftar itu. Ketika kita mengklik tombol ini, itu akan menambah is-visible
kelas pada panel. Tetapi, pertanyaannya adalah bagaimana ia akan melacak panel mana yang dikaitkan dengan klik tombol itu ? Saya mencoba menggunakan status activeId
dan prevId
Tapi pengindeksan saya tidak berfungsi dengan benar dan tidak membuka panel yang benar. Anda dapat memeriksa solusi saya di panel inspektur krom. Saya menghargainya jika Anda memberi tahu saya apa yang saya lakukan salah?
Kode:
// Get a hook function
const {useState} = React;
//#region Data
const data = [
// First Div Panel
[
{
id: 1,
url: "/services",
title: "Services"
},
{
id: 2,
title: "Products",
children: [
{
id: 3,
url: "/themes-templates",
title: "Themes & Templates"
},
{
id: 4,
url: "/open-source",
title: "Open Source"
},
{
id: 5,
url: "/solutions",
title: "Solutions"
}
]
},
{
id: 6,
url: "/work",
title: "Work",
children: [
{
id: 7,
url: "/methodology",
title: "Methodology",
children: [
{
id: 8,
url: "/agile",
title: "Agile",
children: [
{
id: 9,
url: "/scrum",
title: "Scrum"
}
]
}
]
}
]
},
{
id: 10,
url: "/contact-us",
title: "Contact Us"
}
],
// Second Div Panel
[
{
id: 3,
url: "/themes-templates",
title: "Themes & Templates"
},
{
id: 4,
url: "/open-source",
title: "Open Source"
},
{
id: 5,
url: "/solutions",
title: "Solutions"
}
],
// Third Div Panel
[
{
id: 7,
url: "/methodology",
title: "Methodology",
children: [
{
id: 8,
url: "/agile",
title: "Agile",
children: [
{
id: 9,
url: "/scrum",
title: "Scrum"
}
]
}
]
}
],
// Fourth Div Panel
[
{
id: 8,
url: "/agile",
title: "Agile",
children: [
{
id: 9,
url: "/scrum",
title: "Scrum"
}
]
}
],
// Fifth Div Panel
[
{
id: 9,
url: "/scrum",
title: "Scrum"
}
]
];
//#endregion Data
//#region Component
const PanelMenu = props => {
const { title } = props;
const [items, setItems] = useState(data);
// Title Header of the Panel
const [headerTitle, setHeaderTitle] = useState(title ? title : "");
// Previous Title Header of the Panel
const [prevHeaderTitle, setPrevHeaderTitle] = useState(title ? title : "");
// ActiveIndex => 0 means by default master-panel is active
const [activeId, setActiveId] = useState(0);
// PreviousIndex
const [prevId, setPrevId] = useState(0);
const handlePanelBtn = (newTitle, index, prevIndex) => {
// Title Checking
const titleProp = title ? title : "";
const prevTitle = index === 0 ? titleProp : headerTitle;
// SetStates
setPrevHeaderTitle(prevTitle);
setHeaderTitle(newTitle);
setActiveId(index);
setPrevId(prevIndex);
};
const panelRenderer = () => {
const panelsJSX = [];
for (let i = 0; i < items.length; i++) {
let childItemIndex = i;
const panels = (
<div
key={i}
id={i === 0 ? "p__master" : `p__student-${i}`}
className={
childItemIndex === activeId
? "p__panel is-visible"
: "p__panel is-hide"
}
>
<ul>
{items[i].map((item, index) => {
// It means it have children
if (item.children && item.children.length > 0) {
childItemIndex++;
return (
<li key={item.id} className="p-next">
{item.url ? (
<a href={item.url} className="p-link">
{item.title}
</a>
) : (
<div className="p-link">{item.title}</div>
)}
<button
type="button"
className="p-next__btn"
data-id={`#p__student-${childItemIndex}`}
onClick={() => handlePanelBtn(item.title, index, prevId)}
>
<span>></span>
</button>
</li>
);
} else {
return (
<li key={item.id}>
<a href={item.url} className="p-link">
{item.title}
</a>
</li>
);
}
})}
</ul>
</div>
);
panelsJSX.push(panels);
}
return panelsJSX;
};
const renderer = () => {
if (items && items.length > 0) {
return (
<div className="p">
<div className="p__wrap">
{/* Panel Actions => Header */}
<div className="p__actions">
{/* Previous Button */}
{activeId !== 0 && (
<button
type="button"
className="p-action__btn left"
onClick={() =>
handlePanelBtn(prevHeaderTitle, prevId, prevId)
}
>
<span><</span>
</button>
)}
{/* Title */}
{headerTitle && (
<div className="p-action__title">{headerTitle}</div>
)}
{/* Close Button */}
<button type="button" className="p-action__btn right">
<span>×</span>
</button>
</div>
{/* Panel children Wrapper */}
<div className="p__children">{panelRenderer()}</div>
</div>
</div>
);
}
};
return <React.Fragment>{renderer()}</React.Fragment>;
};
//#endregion Component
// Render it
ReactDOM.render(
<PanelMenu title="Menu" />,
document.getElementById("root")
)
<style>
*,:before,:after {
box-sizing: border-box;
}
.p__wrap {
position: absolute;
top: 0;
bottom: 0;
left: 0;
width: 320px;
background-color: #fff;
box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
z-index: 1;
color: #333;
overflow-x: hidden;
}
.p__actions {
position: relative;
padding: 14px;
min-height: 54px;
border-bottom: 1px solid #dcdcdc;
}
.p-action__title {
text-align: center;
color: #333;
text-transform: uppercase;
font-weight: 700;
}
.p-action__btn {
position: absolute;
width: 54px;
height: 54px;
top: 0;
right: 0;
font-size: 16px;
color: #333;
border: none;
cursor: pointer;
}
.left {
left: 0;
}
.right {
right: 0;
}
.p__children {
position: relative;
background-color: #fff;
overflow: hidden;
height: calc(100% - 54px);
}
.p__panel {
overflow-x: hidden;
overflow-y: auto;
position: absolute;
transform: translateX(100%);
top: 0;
right: 0;
bottom: 0;
left: 0;
z-index: 0;
transition: transform 0.2s ease 0s;
}
.p__panel.is-visible {
transform: translateX(0);
z-index: 1;
}
.p__panel.is-hide {
opacity: 0;
visibility: hidden;
}
.p__panel > ul {
margin: 0;
padding: 0;
}
.p__panel > ul > li {
list-style: none;
border-bottom: 1px solid #dcdcdc;
}
.p__panel > ul > li > .p-link {
color: #333;
display: block;
line-height: 22px;
font-size: 14px;
padding: 14px 24px;
background-color: transparent;
cursor: pointer;
}
.p__panel > ul > li > .p-link:hover {
background-color: #dcdcdc;
}
.p-next {
position: relative;
}
.p-next__btn {
position: absolute;
padding: 14px 16px;
font-size: 16px;
line-height: 22px;
top: 0;
right: 0;
background-color: rgb(240,240,240);
color: #333;
border: none;
border-left: 1px solid #dcdcdc;
cursor: pointer;
}
</style>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.4/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.4/umd/react-dom.production.min.js"></script>
<div id="root"></div>